#include <bits/stdc++.h>
using namespace std;
using ll = long long;
typedef pair<int, int> pii;

void solve() {
    int n;
    cin >> n;
    int x, cnt = 0;
    for(int i = 0; i < n; i++){
        cin >> x;
        if(x & 1) cnt++;
    }
    if(cnt & 1) {
        cout << "NO\n";
    }else{
        cout << "YES\n";
    }
}

int main() {
    int t;
    cin >> t;
    while(t--) solve();
    return 0;
}